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Hypophaea Dot Lichen

Biatora hypophaea


Crustose lichen with a gray thallus and distinctive bluish-black ascospores. Pic one has been cropped to see the ascospores. They are so small that they are measured in microns. According to Wikipedia, they are between 8 and 14 microns in diameter. The overall width of the lichen was 3 cm.


Spotted on the smooth bark of a Red alder tree. The small stand of alders were covered in crustose lichens. Spring/wetland surrounded by coniferous forest. Cascade foothills.

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1 Comment

Tukup a month ago

"microns." I always suspected there was a more technical term for "teensy weensy." 😊 Another good spotting and ID Brian.

Spotted by

Washington, USA

Lat: 47.53, Long: -121.95

Spotted on Jan 25, 2020
Submitted on Feb 15, 2020

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